Does anyone know of a Trace Width VS Current/Temp calculator available for PCB design. I recall something from a Universal Cad but cannot find their Web site. Is there anything else out there in cyberspace that can be used other than the old tried and true method of lookup charts in IPC-D-275 aka IPC-2221,2222 ? I've already looked around the following sites for more info, http://www.ipc.org/ & http://www.pcdmag.com/. If not, is the IPC looking @ filling this void? Gary Ferrari are you out there ? Regards, Greg. Gregory E. Bordash, Team Leader, PCB CAD Group ATI Technologies Inc., 33 Commerce Valley Drive East, Thornhill, Ontario, Canada, L3T 7N6 Phone:(905) 882-2600 ext: 8370, Fax: (905) 882-9339 Email: [log in to unmask] ################################################################ DesignerCouncil E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE DesignerCouncil <your full name> To unsubscribe: SIGNOFF DesignerCouncil ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################